99393331 has 8 divisors (see below), whose sum is σ = 101409840. Its totient is φ = 97396992.

The previous prime is 99393319. The next prime is 99393337. The reversal of 99393331 is 13339399.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99393331 - 2⁵ = 99393299 is a prime.

It is a super-2 number, since 2×99393331² = 19758068494551122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99393337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5116 + ... + 14998.

It is an arithmetic number, because the mean of its divisors is an integer number (12676230).

Almost surely, 2^99393331 is an apocalyptic number.

99393331 is a deficient number, since it is larger than the sum of its proper divisors (2016509).

99393331 is a wasteful number, since it uses less digits than its factorization.

99393331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10085.

The product of its digits is 59049, while the sum is 40.

The square root of 99393331 is about 9969.6204040074. The cubic root of 99393331 is about 463.2183427812.

The spelling of 99393331 in words is "ninety-nine million, three hundred ninety-three thousand, three hundred thirty-one".